Simex patented rapid variation system, by a control in the operator cabin, allows the shafts to be instantly distanced and closed from each other in order to rapidly change the particle size of the screened material.
This guarantees speed of execution, versatility (being able to work on different materials) and a considerable saving of time. In fact, there is no downtime due to the spacing operations of the shafts for the particle size change, as happens in systems with fixed shafts.